First, try a soft reset. Do this by pressing the center button and the up volume button simultaneously and try turning it on. If that does not work for you, you will need to get a micro sd card (it can be a dummy) and insert it into the slot on the side of the mp3 player. If you do not have one, you can use one of the round edges of a paper clip (be careful) to get it to come on. When you put either in, it should come on automatically, but if not, just press the power button. This should work. If it does not work, you may need to get a firmware update from this web site: http://www.sandisk.com/Retail/Default.aspx?CatID=1376Remember that you need to back up all of your information before doing the update.

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Related Questions:

To play back a voice recording, you will need to do the following steps after turning on the player. Press Power/Menu briefly to get the software menu. Press the Repeat/A-B/Down button to highlight the line Play Music and press Select to enter the play back sub-menu. Press the Down button again to go to the line Recordings and press Select again. Use the Down button to highlight a particular voice recording and press Select to start playing the recording.

The manual for the Sansa M200 MP3 player is available as a PDF from the manufacturer here: http://kb.sandisk.com/app/answers/detail/a_id/241 . The details for playing back a Voice Recording are on page 23-24 (24-25 of the PDF). You will need Adobe Reader or a similar program to read the manual.

Unfortunately, Sandisk didn't include any options in their firmware to record in any other format.

If you happen to have a version 1 c250 then you can install Rockbox on it and have 4 recording format options, as well as being able to choose what bitrate to record in for the mp3 format.

To find out if your player is a v1 go to Settings -> System InfoIf the version starts with 01 then it's a v1 player and you can install Rockbox on it. If it starts with 03 then it's a v2 player and you're stuck with the wav format, as Rockbox is not yet available for v2 c250 players.

This will probably be impossible without a screen, but here are the steps:
The Sansa Fuze has a built-in microphone allowing you to record your own voice, an
interview, or a speech.
To start voice recording, follow these steps:
1. Press the Home button to return to Main Menu.
2. Select Voice from the Main Menu.
3. Select Record Now.
4. To pause the recording, select Pause.
5. To stop the recording, select Stop.
6. Select Yes to save the recording.
7. Press the |<< button to return to the previous menu.

Hard w/o screen, here are the steps:
The Sansa Fuze has a built-in microphone allowing you to record your own voice, an
interview, or a speech.
To start voice recording, follow these steps:
1. Press the Home button to return to Main Menu.
2. Select Voice from the Main Menu.
3. Select Record Now.
4. To pause the recording, select Pause.
5. To stop the recording, select Stop.
6. Select Yes to save the recording.
7. Press the |<< button to return to the previous menu.